A286552 Ordinal transform of A286622, or equally, of A278222.
1, 1, 2, 1, 3, 1, 2, 1, 4, 2, 3, 1, 3, 2, 2, 1, 5, 4, 5, 3, 6, 1, 4, 1, 4, 5, 6, 1, 3, 2, 2, 1, 6, 7, 8, 7, 9, 2, 8, 3, 10, 3, 4, 1, 9, 2, 4, 1, 5, 10, 11, 2, 12, 3, 3, 1, 4, 5, 6, 2, 3, 2, 2, 1, 7, 11, 12, 13, 13, 5, 14, 7, 14, 6, 7, 4, 15, 5, 8, 3, 15, 8, 9, 6, 10, 1, 7, 1, 16, 8, 9, 1, 9, 2, 4, 1, 6, 17, 18, 4, 19, 10, 5, 3, 20, 11, 12, 2, 6, 3, 4, 1, 5
Offset: 0